The cheatsheet is a companion to their recently released Know Your Rights guide which, in more detail, answers questions like "Can the police enter my home to search my computer or portable device, like a laptop or cell phone?" (not unless they have a warrant) and "If the police ask for my encryption keys or passwords, do I have to turn them over?" (also no). The guide is worth reading for the extra detail, and the printable cheatsheet is a nice, quick version of the guide.